He sold in a normal trading window following the release of FY16 results. It should have been a red flag given the size of his sales - an opportunity for astute investors to bail out - and it's not a good look for him personally, but it's not illegal.
What would the reverse speeding ticket be for? They updated the market about lower earnings, the share price responded, de-valuing the company. That's what you'd expect.
HSO Price at posting:
$2.24 Sentiment: Buy Disclosure: Held